/* ========================================
   Magazine Theme — Main Stylesheet
   ======================================== */

/* --- CSS Custom Properties --- */
:root {
  /* Colors - Light */
  --color-bg: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-card: #ffffff;
  --color-bg-code: #f1f5f9;
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;

  /* Accent */
  --color-primary: #4f46e5;
  --color-primary-hover: #4338ca;
  --color-primary-light: #eef2ff;
  --color-primary-subtle: rgba(79, 70, 229, 0.08);
  --color-accent: #f59e0b;
  --color-accent-light: #fef3c7;

  /* Surface */
  --color-surface: #ffffff;
  --color-surface-hover: #f8fafc;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;

  /* Layout */
  --max-width: 1120px;
  --content-width: 720px;
  --gap: 24px;
  --gap-lg: 48px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Dark Mode */
[data-theme="dark"] {
  --color-bg: #0b1121;
  --color-bg-secondary: #111827;
  --color-bg-card: #131c31;
  --color-bg-code: #1e293b;
  --color-text: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-border: #1e293b;
  --color-border-light: #1a2332;

  --color-primary: #818cf8;
  --color-primary-hover: #6366f1;
  --color-primary-light: #1e1b4b;
  --color-primary-subtle: rgba(129, 140, 248, 0.1);
  --color-accent: #fbbf24;
  --color-accent-light: #292524;

  --color-surface: #131c31;
  --color-surface-hover: #1a2744;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-base), color var(--transition-base);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gap);
}

/* --- Layout Wrapper (sidebar + main) --- */
.layout-wrapper {
  display: flex;
  gap: var(--gap-lg);
  max-width: calc(var(--max-width) + 240px + var(--gap-lg));
  margin: 0 auto;
  padding: 0 var(--gap);
}

.main {
  flex: 1;
  min-width: 0;
  max-width: var(--max-width);
}

/* --- Sidebar --- */
.sidebar {
  width: 300px;
  flex-shrink: 0;
  padding-top: 48px;
}

.sidebar__inner {
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}

/* Sidebar scrollbar */
.sidebar__inner::-webkit-scrollbar {
  width: 4px;
}

.sidebar__inner::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar__inner::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

@supports not selector(::-webkit-scrollbar) {
  .sidebar__inner {
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
  }
}

.sidebar__section {
  padding-bottom: 24px;
}

.sidebar__title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.sidebar__count {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.sidebar__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar__item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.sidebar__item:hover {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.sidebar__item.is-active {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  font-weight: 500;
}

.sidebar__date {
  flex-shrink: 0;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 36px;
  font-family: var(--font-mono);
}

.sidebar__item.is-active .sidebar__date {
  color: var(--color-primary);
}

.sidebar__post-title {
  line-height: 1.4;
  word-break: break-word;
  min-width: 0;
}

.sidebar__year {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--color-primary);
  padding: 10px 10px 4px;
  letter-spacing: 0.03em;
}

.sidebar__empty {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

[data-theme="dark"] .header {
  background: rgba(11, 17, 33, 0.85);
}

.header__inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: var(--gap);
}

.header__logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.header__logo:hover {
  color: var(--color-primary);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.header__link {
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.header__link:hover {
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.header__social {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 20px;
}

.header__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.header__social-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  position: absolute;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

html:not([data-theme="dark"]) .theme-toggle .icon-moon,
[data-theme="dark"] .theme-toggle .icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

html:not([data-theme="dark"]) .theme-toggle .icon-sun,
[data-theme="dark"] .theme-toggle .icon-moon {
  opacity: 0;
  transform: rotate(90deg) scale(0);
}

.theme-toggle svg {
  position: absolute;
}

/* Menu Toggle (Mobile) */
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
}

/* --- Hero Section --- */
.hero {
  padding: 64px 0 48px;
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - var(--gap) * 2);
  max-width: var(--max-width);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.hero__article {
  max-width: var(--content-width);
}

.hero__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.hero__category {
  color: var(--color-primary);
  font-weight: 500;
}

.hero__title {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero__title a {
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.hero__title a:hover {
  color: var(--color-primary);
}

.hero__excerpt {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.hero__readmore {
  display: inline-flex;
  align-items: center;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  gap: 4px;
  transition: gap var(--transition-fast);
}

.hero__readmore:hover {
  gap: 8px;
  color: var(--color-primary-hover);
}

/* --- Section Header --- */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  padding-top: 48px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  position: relative;
  padding-left: 16px;
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  border-radius: 2px;
  background: var(--color-primary);
}

/* --- Post Grid --- */
.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
  padding-bottom: 48px;
}

/* --- Post Card --- */
.post-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.post-card__image {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--color-bg-secondary);
}

.post-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.post-card:hover .post-card__image img {
  transform: scale(1.05);
}

.post-card__body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.post-card__category {
  color: var(--color-primary);
  font-weight: 500;
}

.post-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.post-card__title a {
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.post-card__title a:hover {
  color: var(--color-primary);
}

.post-card__excerpt {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--color-border-light);
}

.post-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.post-card__more {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* --- Tags --- */
.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  padding: 2px 8px;
  border-radius: 100px;
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--color-primary);
  color: white;
}

/* --- Post Page --- */
.post {
  padding: 48px 0 64px;
}

.post__container {
  max-width: var(--content-width);
}

.post__header {
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.post__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.post__category a {
  color: var(--color-primary);
  font-weight: 500;
}

.post__title {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.post__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* --- Post Content (shared with page) --- */
.post__content {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text);
}

.post__content h1,
.post__content h2,
.post__content h3,
.post__content h4,
.post__content h5,
.post__content h6 {
  font-weight: 700;
  line-height: 1.35;
  margin-top: 2em;
  margin-bottom: 0.6em;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.post__content h1 {
  font-size: 2rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.3em;
}

.post__content h2 {
  font-size: 1.5rem;
  border-bottom: 1px solid var(--color-border-light);
  padding-bottom: 0.25em;
}

.post__content h3 { font-size: 1.25rem; }
.post__content h4 { font-size: 1.125rem; }
.post__content h5 { font-size: 1rem; }
.post__content h6 { font-size: 0.875rem; color: var(--color-text-secondary); }

.post__content p {
  margin-bottom: 1.2em;
}

.post__content a {
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--color-primary);
  text-decoration-thickness: 1px;
}

.post__content strong {
  font-weight: 600;
}

.post__content blockquote {
  margin: 1.5em 0;
  padding: 16px 20px;
  border-left: 4px solid var(--color-primary);
  background: var(--color-primary-subtle);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text-secondary);
}

.post__content blockquote p:last-child {
  margin-bottom: 0;
}

.post__content ul,
.post__content ol {
  margin: 1em 0;
  padding-left: 1.5em;
}

.post__content li {
  margin-bottom: 0.4em;
}

.post__content hr {
  margin: 2em 0;
  border: none;
  height: 1px;
  background: var(--color-border);
}

.post__content img {
  border-radius: var(--radius-md);
  margin: 1.5em auto;
  box-shadow: var(--shadow-md);
}

/* --- Inline Code --- */
.post__content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 2px 6px;
  background: var(--color-bg-code);
  border-radius: 4px;
  color: var(--color-text);
}

.post__content pre code {
  padding: 0;
  background: transparent;
  border-radius: 0;
  font-size: 0.875rem;
}

/* --- Fenced Code Blocks (standalone <pre>) --- */
.post__content pre {
  margin: 1.5em 0;
  padding: 16px 20px;
  background: #f6f8fa;
  border: 1px solid #e1e4e8;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  color: #24292f;
}

[data-theme="dark"] .post__content pre {
  background: #161b22;
  border-color: #30363d;
  color: #e6edf3;
}

/* --- Hexo highlight figure --- */
.post__content figure.highlight {
  margin: 1.5em 0;
  border-radius: var(--radius-md);
  background: #f6f8fa;
  border: 1px solid #e1e4e8;
  overflow-x: auto;
  position: relative;
}

[data-theme="dark"] .post__content figure.highlight {
  background: #161b22;
  border-color: #30363d;
}

/* Hide gutter (line numbers) */
.post__content figure.highlight .gutter {
  display: none;
}

.post__content figure.highlight table {
  width: 100%;
  margin: 0;
  border: none;
  border-collapse: collapse;
}

.post__content figure.highlight td {
  padding: 0;
  border: none;
}

.post__content figure.highlight .code pre {
  margin: 0;
  padding: 16px 20px;
  border: none;
  border-radius: 0;
  background: transparent;
  color: #24292f;
  font-size: 0.875rem;
  line-height: 1.6;
  overflow: visible;
  font-family: var(--font-mono);
  width: max-content;
  min-width: 100%;
}

[data-theme="dark"] .post__content figure.highlight .code pre {
  color: #e6edf3;
}

/* Code block scrollbar */
.post__content figure.highlight::-webkit-scrollbar {
  height: 5px;
}

.post__content figure.highlight::-webkit-scrollbar-track {
  background: transparent;
}

.post__content figure.highlight::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.15);
  border-radius: 3px;
}

[data-theme="dark"] .post__content figure.highlight::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
}

.post__content figure.highlight::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.25);
}

[data-theme="dark"] .post__content figure.highlight::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

@supports not selector(::-webkit-scrollbar) {
  .post__content figure.highlight {
    scrollbar-width: thin;
  }
}

/* -- Inline code in dark mode -- */
[data-theme="dark"] .post__content code {
  background: rgba(110, 118, 129, 0.4);
}

/* highlight.js - GitHub Dark Dimmed inspired syntax colors */
.post__content .hljs-keyword,
.post__content .hljs-selector-tag,
.post__content .hljs-type { color: #d73a49; }

.post__content .hljs-string,
.post__content .hljs-addition { color: #0a3069; }

.post__content .hljs-number,
.post__content .hljs-literal { color: #0550ae; }

.post__content .hljs-comment,
.post__content .hljs-quote { color: #6e7781; font-style: italic; }

.post__content .hljs-built_in,
.post__content .hljs-builtin-name { color: #8250df; }

.post__content .hljs-function,
.post__content .hljs-title,
.post__content .hljs-title.function_ { color: #8250df; }

.post__content .hljs-attr,
.post__content .hljs-attribute,
.post__content .hljs-variable { color: #953800; }

.post__content .hljs-params { color: #24292f; }

.post__content .hljs-regexp { color: #0a3069; }

.post__content .hljs-meta { color: #0550ae; }

.post__content .hljs-tag { color: #116329; }

.post__content .hljs-name { color: #116329; }

.post__content .hljs-selector-class { color: #0550ae; }

.post__content .hljs-punctuation { color: #24292f; }

.post__content .hljs-deletion { color: #bd2c00; }

/* Dark mode syntax colors - GitHub Dark Dimmed */
[data-theme="dark"] .post__content .hljs-keyword,
[data-theme="dark"] .post__content .hljs-selector-tag,
[data-theme="dark"] .post__content .hljs-type { color: #ff7b72; }

[data-theme="dark"] .post__content .hljs-string,
[data-theme="dark"] .post__content .hljs-addition { color: #a5d6ff; }

[data-theme="dark"] .post__content .hljs-number,
[data-theme="dark"] .post__content .hljs-literal { color: #79c0ff; }

[data-theme="dark"] .post__content .hljs-comment,
[data-theme="dark"] .post__content .hljs-quote { color: #8b949e; font-style: italic; }

[data-theme="dark"] .post__content .hljs-built_in,
[data-theme="dark"] .post__content .hljs-builtin-name { color: #d2a8ff; }

[data-theme="dark"] .post__content .hljs-function,
[data-theme="dark"] .post__content .hljs-title,
[data-theme="dark"] .post__content .hljs-title.function_ { color: #d2a8ff; }

[data-theme="dark"] .post__content .hljs-attr,
[data-theme="dark"] .post__content .hljs-attribute,
[data-theme="dark"] .post__content .hljs-variable { color: #ffa657; }

[data-theme="dark"] .post__content .hljs-params { color: #e6edf3; }

[data-theme="dark"] .post__content .hljs-regexp { color: #a5d6ff; }

[data-theme="dark"] .post__content .hljs-meta { color: #79c0ff; }

[data-theme="dark"] .post__content .hljs-tag { color: #7ee787; }

[data-theme="dark"] .post__content .hljs-name { color: #7ee787; }

[data-theme="dark"] .post__content .hljs-selector-class { color: #79c0ff; }

[data-theme="dark"] .post__content .hljs-punctuation { color: #e6edf3; }

[data-theme="dark"] .post__content .hljs-deletion { color: #ffa198; }

.post__content table {
  width: 100%;
  margin: 1.5em 0;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.post__content th,
.post__content td {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.post__content th {
  background: var(--color-bg-secondary);
  font-weight: 600;
}

/* Post Navigation */
.post__footer {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.post__nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}

.post__nav-link {
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.post__nav-link:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.post__nav-next {
  text-align: right;
}

.post__nav-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.post__nav-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post__nav-link:hover .post__nav-title {
  color: var(--color-primary);
}

/* --- Page --- */
.page {
  padding: 48px 0 64px;
}

.page__container {
  max-width: var(--content-width);
}

.page__header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.page__title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* --- Archive --- */
.archive {
  padding: 48px 0 64px;
}

.archive__header {
  margin-bottom: 40px;
}

.archive__title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.archive__count {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.archive__year {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.archive__item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border-light);
  transition: padding var(--transition-fast);
}

.archive__item:hover {
  padding-left: 8px;
}

.archive__date {
  flex-shrink: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  min-width: 60px;
  font-variant-numeric: tabular-nums;
}

.archive__link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  flex: 1;
}

.archive__link:hover {
  color: var(--color-primary);
}

.archive__tags {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

/* --- Tags Page (Cloud) --- */
.tags-page,
.categories-page,
.tag-page,
.category-page {
  padding: 48px 0 64px;
}

.tags-page__header,
.categories-page__header {
  margin-bottom: 40px;
}

.tags-page__title,
.categories-page__title,
.tag-page__title,
.category-page__title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.tags-page__count,
.categories-page__count {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.tag-page__back,
.category-page__back {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.tags__cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.tag-cloud__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.tag-cloud__item:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-1px);
}

.tag-cloud__count {
  font-size: 0.75rem;
  opacity: 0.7;
}

/* --- Categories Page (Grid) --- */
.categories__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--gap);
}

.category-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 28px 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.category-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.category-card__name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
}

.category-card__count {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --- Search --- */
.search-page {
  padding: 48px 0 64px;
}

.search-page__header {
  margin-bottom: 32px;
}

.search-page__title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.search__box {
  position: relative;
  margin-bottom: 32px;
}

.search__input {
  width: 100%;
  padding: 16px 20px;
  padding-left: 52px;
  font-size: 1.125rem;
  font-family: var(--font-sans);
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  outline: none;
  transition: all var(--transition-fast);
}

.search__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-subtle);
}

.search__input::placeholder {
  color: var(--color-text-muted);
}

.search__icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

.search__results {
  min-height: 200px;
}

.search__hint {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.search__result-item {
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  transition: all var(--transition-fast);
}

.search__result-item:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.search__result-item a {
  color: var(--color-text);
}

.search__result-item:hover a {
  color: var(--color-primary);
}

.search__result-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.search__result-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.search__result-meta {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 8px;
}

/* --- Pagination --- */
.pagination {
  padding: 32px 0 64px;
}

.pagination__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.pagination__prev,
.pagination__next {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.pagination__prev:hover,
.pagination__next:hover {
  background: var(--color-primary);
  color: white;
}

.pagination__info {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer__social {
  display: flex;
  gap: 20px;
}

.footer__social-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer__social-link:hover {
  color: var(--color-primary);
}

.footer__copy {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.footer__copy a {
  color: var(--color-text-muted);
}

.footer__copy a:hover {
  color: var(--color-primary);
}

/* --- Empty Message --- */
.empty-message {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* --- Utilities --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ========================================
   Responsive
   ======================================== */

/* Tablet */
@media (max-width: 1024px) {
  .layout-wrapper {
    gap: var(--gap);
  }

  .sidebar {
    width: 260px;
  }

  .post-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero__title {
    font-size: 2rem;
  }

  .post__title {
    font-size: 1.75rem;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .layout-wrapper {
    flex-direction: column;
    gap: 0;
  }

  .sidebar {
    display: none;
  }

  .header__inner {
    height: 56px;
  }

  .header__nav {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 8px;
    flex-direction: column;
    gap: 2px;
    box-shadow: var(--shadow-lg);
  }

  .header__nav.is-open {
    display: flex;
  }

  .header__link {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
  }

  .menu-toggle {
    display: flex;
  }

  .header__social {
    display: none;
  }

  .hero {
    padding: 40px 0 32px;
  }

  .hero__title {
    font-size: 1.625rem;
  }

  .hero__excerpt {
    font-size: 1rem;
  }

  .post-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .post {
    padding: 32px 0 48px;
  }

  .post__title {
    font-size: 1.5rem;
  }

  .post__header {
    margin-bottom: 24px;
    padding-bottom: 20px;
  }

  .post__nav {
    grid-template-columns: 1fr;
  }

  .section-header {
    padding-top: 32px;
    margin-bottom: 20px;
  }

  .section-title {
    font-size: 1.25rem;
  }

  .archive__item {
    flex-wrap: wrap;
    gap: 8px;
  }

  .archive__tags {
    width: 100%;
    padding-left: 76px;
  }

  .pagination__inner {
    gap: 12px;
  }

  .page__title,
  .archive__title,
  .tags-page__title,
  .search-page__title {
    font-size: 1.5rem;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero__title {
    font-size: 1.375rem;
  }
}